How to Check an OLED Screen for Burn-In
Burn-in is permanent uneven ageing of OLED subpixels, where areas showing static bright content become dimmer than their surroundings. Image retention looks the same but fades; burn-in does not.
Why OLED ages unevenly
Every OLED subpixel generates its own light, and the organic compound that does so degrades slightly with every hour of use. A subpixel driven hard for thousands of hours emits less light than an identical one that has been mostly dark. When that pattern of use follows a fixed shape — a status bar, a taskbar, a channel logo, a game's health bar — the shape eventually becomes visible on uniform content.
LCD panels do not have this failure mode, because their pixels do not generate light. They share a backlight and simply block or pass it, so there is no per-pixel ageing to accumulate. LCDs can show temporary image retention, but it clears.
Telling retention from burn-in
The difference is time, not appearance. Display varied content for a while — a video, a slideshow, anything that lights different regions — and re-check. If the shape has faded, it was retention. If it is exactly as visible, it is burn-in.
Most OLED devices run compensation cycles automatically when idle, which is part of why retention often clears on its own overnight. If a shape survives that, treat it as permanent.
Running the check
Darken the room, set brightness to a normal level rather than maximum, and go full screen. Start with mid grey: it lights every subpixel at a moderate level, which is where small brightness differences are easiest to see.
Step through the colour slides afterwards. Uneven ageing frequently affects one channel more than the others, so a shape invisible on grey can be obvious on blue or green.
Move your eyes across the whole panel rather than staring at the centre. Burn-in is usually strongest at the edges where interface elements live.
Reducing the risk
The three things that matter are brightness, static content and time. Lowering brightness helps the most, because degradation scales with how hard subpixels are driven. Hiding or auto-hiding persistent interface elements removes the fixed shapes. Varying what you display spreads the wear.
Most modern OLED devices already include mitigations — pixel shifting, logo dimming, periodic compensation cycles — and they are effective enough that typical mixed use rarely produces visible burn-in. The risk concentrates in specific patterns: a static dashboard left on for hours, a news channel with a permanent ticker, a game HUD at maximum brightness.
Test it yourself: OLED Burn-In Test
Frequently Asked Questions
How do I check for OLED burn-in?
Display a full-screen mid-grey field in a dark room and look for faint shapes matching anything you display constantly, such as a taskbar or a status bar. Follow with solid colour slides, since uneven ageing often shows in one colour channel before it shows on grey.
Is image retention the same as burn-in?
No. Retention is temporary and fades once varied content is shown. Burn-in is permanent physical ageing of the subpixels. If the shape is still there after a few hours of normal use, it is burn-in.
Can burn-in be repaired?
Not genuinely. The subpixels have aged and cannot be un-aged. Some devices offer a pixel-refresh or compensation routine that evens out brightness across the panel, which makes the damage less visible without removing the cause.
How long does OLED burn-in take to appear?
There is no fixed period — it depends on brightness, how static the content is, and total hours. Varied content at moderate brightness rarely produces visible burn-in over a normal device lifetime. A static bright element for many hours a day is the risk case.
Do phones get burn-in?
They can, most often showing faint outlines of the status bar or navigation buttons. Modern phones mitigate this with pixel shifting and adaptive brightness, and gesture navigation removes one of the main static elements.
Sources: MDN — Fullscreen API · MDN — requestAnimationFrame()
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